Circuit Potential Difference · CAP 2007 #3

Physics · electromagnetism

Problem

What is the potential difference VB−VAV_B - V_A in the circuit segment below if the current I=1.5I = 1.5 A? [Figure: Circuit segment with 20 Ω resistor, 20 V and 12 V batteries, current I flowing from A to B] (a) +22 V (b) –22 V (c) –38 V (d) +38 V (e) +2.0 V

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